Home / 14,639.37-21,956.70-4,778.55

Finding the Fourth Proportional to 14,639.37, 21,956.70 and 4,778.55

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Solution

The fourth proportional to 14,639.37, 21,956.70 and 4,778.55 is: 7,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.37 : 21,956.70 = 4,778.55 : x
  2. Step 2: Convert to fraction form
    14,639.37/21,956.70 = 4,778.55/x
  3. Step 3: Cross multiply
    14,639.37x = 21,956.70 × 4,778.55
  4. Step 4: Simplify right side
    14,639.37x = 104,921,188.79
  5. Step 5: Solve for x
    x = 104,921,188.79/14,639.37
  6. Step 6: Final answer
    x = 7,167.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.